The M16 Series LED Light Connector is Reunion's specialized interconnect for intelligent LED lighting systems—from street lights with dimming control to architectural lighting with color-changing capabilities. This threaded circular connector combines a robust 16mm interface with IP67/IP68 sealing, making it suitable for outdoor installations where both power and signal integrity are essential.
Available in 2- to 8-pin configurations, including the key hybrid 2+4 pin version (2 power pins + 4 signal pins), the M16 series supports both high-current power delivery (up to 15A) and low-voltage control signals (DALI, DMX, 0-10V dimming, or RS-485) within a single compact connector.
The housing is constructed from high-temperature thermoplastic with excellent weather resistance, while contacts are machined from brass with selective gold plating to ensure low and stable contact resistance. Reunion manufactures the M16 series through a vertically integrated process—from precision machining and injection molding through automated assembly and 100% electrical testing.
Available in panel-mount and cable-mount versions with solder or PCB terminations, the M16 series adapts to diverse luminaire designs. For engineers designing connected lighting systems for smart cities, tunnels, or sports stadiums, this connector provides a reliable, weather-sealed interconnect that reduces cable count and simplifies installation.
| Feature | Benefit |
| IP67/IP68 Environmental Sealing | Withstands dust, rain, and temporary immersion—reliable for outdoor street lights, tunnel lighting, and sports stadiums. |
| Hybrid 2+4 Pin Configuration | Combines 2 power pins (10A) and 4 signal pins (3A) in one connector—reduces cable count and simplifies luminaire wiring. |
| Power Ratings up to 15A | Handles high-power LED loads—suitable for street lights, floodlights, and stadium lighting. |
| Signal-Friendly Design | Separate power and signal contacts prevent interference |
| Threaded Locking Mechanism | Vibration-resistant mating—prevents loosening from wind, traffic vibration, and thermal cycling. |
| Gold-Plated Brass Contacts | Low contact resistance (≤3mΩ) and corrosion protection—maintains consistent LED driver and control signal performance. |
| -40°C to +105°C Operation | Wide temperature range covers extreme outdoor conditions—from Arctic winters to desert summers. |
| Multi-Pin Options (2-8 Pins) | Supports simple power-only luminaires and complex multi-channel color-changing fixtures. |
| Parameter | 2-pin | 3-pin | 4-pin | 5-pin | 6-pin | 7-pin | 8-pin | 2+4-pin |
| Voltage Rating | 250V | 250V | 250V | 250V | 125V | 50V | 50V | 250V+50V |
| Current Rating | 15A | 15A | 10A | 10A | 5A | 5A | 5A | 10A+3A |
| Wire Section | 0.75-1.5mm² | 0.75-1.5mm² | 0.5-1.0mm² | 0.5-1.0mm² | 0.25-0.5mm² | 0.25-0.5mm² | 0.25-0.5mm² | 1.5/0.5mm² |
Operating Temperature:-40°C ~ +105°C
Protection Rating: IP67 / IP68 (mated)
Housing Material:High-temperature thermoplastic
Contact Material:Gold-plated copper alloy
Contact Resistance:≤3mΩ
Mating Cycles:≥500
Flammability Rating:UL 94 V-0
All materials RoHS compliant
Smart Street Lighting– Centralized dimming and monitoring systems with DALI or 0-10V control.
Tunnel Lighting– High-power luminaires with dimming and fault reporting.
Architectural & Façade Lighting– RGB and tunable-white systems requiring DMX control.
Stadium & Sports Lighting– High-power floodlights with on-site dimming and control.
Industrial High-Bay Lighting– Warehouse and factory lighting with motion sensing and daylight harvesting.
Marine & Offshore Lighting– Corrosion-resistant fixtures for ships and offshore platforms.
Solar-Powered Lighting– Off-grid systems with battery management and dimming.
Singapore's Land Transport Authority was upgrading 25,000 street lights to smart LED luminaires with centralized dimming and fault reporting via DALI protocol. The project required connectors capable of carrying both power and DALI control signals in a single cable—reducing installation complexity and cable cost. Reunion supplied the M16 series with 2+4 hybrid configuration (2 power pins for LED driver, 4 signal pins for DALI), IP67 sealing, and pre-assembled PUR cable harnesses. Over 25,000 connectors were delivered across the project. After 2 years of operation in Singapore's tropical climate (high humidity, heavy rain), the project reporteda connector failure rate of 0.01%. The client credited the 2+4 hybrid design for enabling a single-cable installation, reducing wiring time by 35% compared to previous separate power/signal installations.
| Certification | Scope |
| ISO 9001:2015 | Quality management—design, production, and after-sales service. |
| ISO 14001:2015 | Environmental management—verified waste reduction and sustainable practices. |
| ISO 13485:2016 | Medical device quality management—applicable for M16 used in diagnostic or monitoring equipment. |
| UL Recognized | Component-level safety certification for North American markets. |
| RoHS | Restriction of hazardous substances—compliance with EU Directive. |
Reunion's M16 LED connector production line operates under strict process controls. IP67 sealing is verified on every production batch through actual immersion testing. Test records, material certificates, and inspection reports are retained for each batch, supporting your quality audits and customer documentation requirements.
The 2+4 hybrid configuration is specifically valuable for smart LED lighting systems where both power and control signals are required:
2 power pins deliver high current (10A) at 250V for the LED driver.
4 signal pins carry low-voltage control signals (e.g., DALI, DMX, 0-10V dimming, or RS-485 data).
By combining both in one connector, you eliminate the need for separate power and signal cables—reducing installation time, cable cost, and panel space. This is especially valuable for smart street lighting, where luminaires are often spaced far apart, and running a single hybrid cable is significantly more cost-effective than running separate power and control cables.
Yes—the 2+4 hybrid configuration provides4 independent signal contacts, allowing multiple protocols to be carried in the same connector. For example:
DALI requires 2 wires (data + ground).
DMX(RS-485) requires 3 wires (data+, data-, ground).
0-10V dimming requires 2 wires (dim + ground).
With 4 signal pins, you could support DALI (2 pins) + one additional control channel, or a full DMX implementation (3 pins) + one spare. For applications requiring more signal lines (e.g., tunable-white + RGB color control), we recommend using the 5-, 6-, or 8-pin configurations. Our engineering team can help you select the optimal pin configuration for your specific protocol requirements.
To achieve and maintain IP67/IP68 sealing in outdoor LED installations, Reunion recommends:
Mating torque– Hand-tighten the coupling nut until the O-ring contacts the panel surface, then apply additional torque of0.6-0.8Nmusing a torque wrench. Do not exceed 1.0Nm.
O-ring inspection– Replace the O-ring if deformation, cracking, or hardening is visible.
Replacement schedule– For outdoor LED installations (daily thermal cycling, UV exposure, rain), replace O-rings every 2-3 years as part of preventive maintenance.
Cable bend radius– Maintain a minimum bend radius of 5× cable diameter at the connector entry to prevent stress on the cable seal.
Cable orientation– For outdoor installations, orient the cable exit downward to prevent water pooling near the seal interface.
Cleaning– Clean connector exteriors with mild detergent and water before reconnection to prevent debris from compromising the seal.
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